19828029

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{3881}}^1$

素因数の和:4028

約数の個数: 16

約数和(自身を含む): 28695744

約数和(自身を除く): 8867715

約数列:

[1, 3, 13, 39, 131, 393, 1703, 3881, 5109, 11643, 50453, 151359, 508411, 1525233, 6609343, 19828029]

約数ペア:

[(1, 19828029), (3, 6609343), (13, 1525233), (39, 508411), (131, 151359), (393, 50453), (1703, 11643), (3881, 5109)]